code: def validate_module_name(module):
      if not isinstance(module, str):
          raise exceptions.PageError(
              "The first attribute of dash.register_page() must be a string or '__name__'"
          )
      return module
  
imports: from collections.abc import MutableSequence
  import re
  from textwrap import dedent
  from keyword import iskeyword
  import flask
  from ._grouping import grouping_len, map_grouping
  from .development.base_component import Component
  from .None import exceptions
  from ._utils import patch_collections_abc, stringify_id, to_json, coerce_to_list, clean_property_name
label_desc: Use image node_id 19 for calling a global function with example usage: validate_module_name(module) and returns: module